Kino is enjoying his morning listening to the sounds of nature. He eats his breakfast with Juana.
A scorpion is sneaking up on Coyotito. Kino attempts to grab it, but it slips through his fingers and stings Coyotito. Juana jumps into action and starts to suck out the venom. They try to take him to the doctor, but the doctor refuses them becuase of their race and because they are poor.
Kino and Juana find a pearl. Everyone in town finds out and wants to take advantage of Kino. They are attacked by someone who is trying to take the pearl. He tries to sell it to the pearl buyers, but they are giving him a lot less than it's worth. Juana is starting to feel unsure of the pearl when they are attacked a second time.
Kino kills a man who tries to steal the pearl after he beats Juana for trying to throw it into the ocean. They get back home to find their house on fire and their canoe has a hole in it. They hide out in Kino"s older brothers house.
They flee into the mountains. Three men are following. Kino, Juana, and Coyotito hid in a cave by a mountain stream. The men camp below them. Kino attempts to grab the rifle from the lookout when they are sleeping. Coyotito starts to make noise and is mistaken for a coyote. The one with the rifle shoots in that direction and ends up killing coyotito.
Kino and Juana return to La Paz and throw the pearl back into the ocean.